... in certain measurement applications. Application: Liquid-filled pressure gauges provide users a number of advantages in ... BSPP,UNF,or customizedCustomized dial Pressure Increment: bar, kPa, kg/cm2, PSI, or dual.Silicon and mineral oils availableDish- ... 1/4"NPT DialConnectionPointerBourdon TubeMovement dualbrassaluminiumbrassbrass * Liquid to glycerine or silicon oil * case size 2", 3.5", 4" , 5 ...